Now that it's public knowledge Kendall Jenner has a nipple piercing, she's certainly not shy about showing it off.

The Keeping Up With The Kardashians star opted to go braless in Los Angeles on Wednesday as she headed to sister Kim's surprise birthday in Thousand Oaks , California, and her piercing was on full display.

The make-up free 19-year-old wasn't worried about courting unwanted attention dressed in a see-through white top which showed off the stud - and more.

The reality babe, who was seen with sister Kylie and Kylie's rapper boyfriend Tyga, teamed the risque outfit with a clinging white skirt and black strappy sandals.

“I was going through a period in my life, having a rough time, being a rebel and was like, 'Let’s just do it,’” she told Page Six last month.

The reality star admitted she almost didn’t go through with it though, adding: "[I was] so terrified, I’m laying on the bed like, "Why am I doing this?’"

Kendall was joined by Kylie and Tyga (Image: FameFlynet)

The star recently admitted she had it done when she was going through a "rebellious" time (Image: FameFlynet)

Kendall continued: "Honestly, it hurt, but wasn’t as bad as everyone made it seem and maybe because everyone hyped it up and I thought it would be really, really bad. Then it wasn’t as bad as I expected.”